Ingleside, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 65.9 °F (low) to 78.9 °F (high). Annual precipitation averages 35.4 Inches. Ingleside is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 49.1 °F | 64.4 °F | 1.98 in. |
| February | 53.1 °F | 67.4 °F | 1.76 in. |
| March | 59.2 °F | 72.4 °F | 2.41 in. |
| April | 65.9 °F | 78.4 °F | 1.86 in. |
| May | 72.9 °F | 83.6 °F | 3.43 in. |
| June | 78.1 °F | 88.4 °F | 3.54 in. |
| July | 79.4 °F | 89.6 °F | 2.75 in. |
| August | 79.1 °F | 90.7 °F | 2.81 in. |
| September | 75.5 °F | 88.5 °F | 5.77 in. |
| October | 68.8 °F | 82.8 °F | 4.22 in. |
| November | 58.7 °F | 73.7 °F | 2.62 in. |
| December | 51.2 °F | 66.8 °F | 2.2 in. |
| Annual | 65.9 °F | 78.9 °F | 35.35 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 10a : 30°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |